A further detail of the menu error in the demo I've just noticed. It seems to be trying to load all the full version appearances of whatever characters happen to be present in the area you are visiting.
Also when you choose a booster reward for winning the blackjack sometimes you get blank cards in the demo. Is it supposed to be normal for the demo blackjack and lilith to give dimensional, zombie, and gambler cards despite them not being available at the card shop?